From 41a4c7c39f8720c2381fc13f8c88c1a74dd723a5 Mon Sep 17 00:00:00 2001
From: Matthias <xmatthias@outlook.com>
Date: Mon, 21 Oct 2024 06:39:55 +0200
Subject: [PATCH] chore: improve type safety

---
 freqtrade/data/metrics.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/freqtrade/data/metrics.py b/freqtrade/data/metrics.py
index 77f29080c..de8ebac4a 100644
--- a/freqtrade/data/metrics.py
+++ b/freqtrade/data/metrics.py
@@ -261,8 +261,8 @@ def calculate_expectancy(trades: pd.DataFrame) -> tuple[float, float]:
     :return: expectancy, expectancy_ratio
     """
 
-    expectancy = 0
-    expectancy_ratio = 100
+    expectancy = 0.0
+    expectancy_ratio = 100.0
 
     if len(trades) > 0:
         winning_trades = trades.loc[trades["profit_abs"] > 0]